Home / 1,381,295.73-2,070,372.42-840,359.59

Finding the Fourth Proportional to 1,381,295.73, 2,070,372.42 and 840,359.59

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Solution

The fourth proportional to 1,381,295.73, 2,070,372.42 and 840,359.59 is: 1,259,583.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,295.73 : 2,070,372.42 = 840,359.59 : x
  2. Step 2: Convert to fraction form
    1,381,295.73/2,070,372.42 = 840,359.59/x
  3. Step 3: Cross multiply
    1,381,295.73x = 2,070,372.42 × 840,359.59
  4. Step 4: Simplify right side
    1,381,295.73x = 1,739,857,316,575.91
  5. Step 5: Solve for x
    x = 1,739,857,316,575.91/1,381,295.73
  6. Step 6: Final answer
    x = 1,259,583.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.